Wall Corner detail similar for purlin and girt or rafter and stud style framing. On wall girt framing detail shows blocking laid between wall girts. On rafter and stud framing the member is simply the vertical stud.
Screws with Base & Cap Screw counting screws used in body of sheet and perimeter.
See 8 – 25mm Polycarb some are 20 Yr Warranty – Lexan Thermoclear is clearly the industry leader